If this guy was a public defender I would agree it'd be inappropriate to go after him but it's obvious he's only defending this vile scumbag because said vile scumbag is paying him boatloads of money. He's about as moral as CEOs of company's that do business with the Russian government.
Weinstein wouldn't be eligible for a public defender; they are only for the indigent. The only way he could defend himself would be to hire an attorney. Should his attorney be punished for not leaving Weinstein completely unrepresented?